ROCHESTER, Minn. -- A noninvasive, outpatient treatment for noncancerous uterine tumors provides sustained relief from symptoms, according to a new Mayo Clinic led collaborative study.The study of this innovative treatment approach -- called magnetic resonance imaging guided focused ultrasound surgery (MRgFUS) -- also shows that the more completely tumors are destroyed by focused ultrasound, the more durable the symptom relief. In addition, the incidence of severe side effects is low. Combined, these results produce an overall improved quality of life. The report by Mayo and its collaborators, the Magnetic Resonance Imaging Guided Focused Ultrasound for Uterine Fibroid Group at Brigham and Women’s Hospital and Harvard Medical School, appears in the Aug. 1 issue of Obstetrics & Gynecology.